The technique used to analyze the transcriptome of a cell is: MCQ with Answer and Explanation

Explanation:
Agrobacterium tumefaciens is a soil bacterium that naturally transfers part of its Ti (tumor-inducing) plasmid DNA (T-DNA) into the plant genome, causing crown gall disease. Scientists have harnessed this capability by replacing the tumor-causing genes with desirable genes, making it a vector for creating transgenic plants. E. coli vectors are used for bacterial transformation.

Explanation:
Vitamin C (ascorbic acid) is a water-soluble antioxidant that also acts as a cofactor for enzymes involved in collagen synthesis, carnitine synthesis, and neurotransmitter production. Deficiency causes scurvy. Vitamin A is for vision, D for bone, K for clotting. Smokers require higher vitamin C intake due to oxidative stress.

Explanation:
In the biogeochemical carbon cycle, carbon dioxide (CO2) is removed from the atmosphere primarily by autotrophs (plants, algae) through the process of photosynthesis, where it is fixed into organic compounds (glucose). Carbon is returned to the atmosphere through respiration (by plants and animals), decomposition of dead organic matter, and combustion of fossil fuels.